Safety razor



March l, '1932. B G. JANSSON 1,848,078

SAFETY RAZOR Filed Jung. 20, 1931 2 Sheets-Sheet lv March 1, 1932.

B, G. JANSSON SAFETY RAZOR 1951 A2 Sheets-Sheet Filed June 2OI PatentedMar.` 1, 1932 BENNETT G. JANSSON, -oE KITTEEY, MAINE, ASSIGNOR ToEivrEI/asoN APPARATUS COM'- :eANxnY OE MELROSE, MASSACHUSETTS, A;CORPORATION OE RHODE ISLAND v o SAFETY:RAZOR Application filed Junev2o,Y

To most users of safety razors the ability K to change blades quickly isa Very important blade, the introduction of a new blade, and

the clamping of the new blade in shaving' position, but it also involvesthe question of so relating these parts that the-danger ofcutting thefingers will be minimized', and liabilf ity ofdropping or misplacingparts of the razor, or gettingthem out of adj ustment,'will be obviated.i f

These requirements suggest lthe desirability of a construction in whicha 'spring will be used to operate parts for holdingthe blade clamped inshaving position with sonie'man-` ually operable means for "releasingthe bladev against the tension of the spring. l

An important objection, however, to any razor in which the blade is heldclamped by a spring is that the edge ofthe blade is likely to lvibrateduring shaving. '.In fact, this objection exists in razor constructionsof other types. Vibrationofsthe blade during shaving is not onlylikelyto result in a poor4 shave, but'it also increases the scraping andcutting the face.y

The present inventionv lis lespecially con-` cernedV with theseconsiderations. It aims to devise a razor construction which will per`mit the quick and convenientchanging of the blades while minimizing thedanger of cut-, ting the fingers, and in which any substan--tial-vibration of the `cutting edge of the blade vdanger of duringshaving will beprevented.

` The-nature of thevinvention will be readily understood from the`following description when Aread in connectionwith the accompanyfing-drawings, and thevnovel features will be" particularly pointedoutAin the appendedy claims. Y i

In the drawings, g l

Figure l is a perspective viewy of a safety Figs. Zand 3 1931.AseriaiNp'. 545,714. Y 1 p razor constructed inv accordance with thislin# vention; f A

are longitudinal Sectional views of the razor Shown in Fig; l, showing Ythefblade holder in openkrand closed posi#y tions, respectively;

rig. 4 1s a plan View of a razor Similarto that fsliown iin-Fig;V l, butmodiliedin minor"V of the handle particulars, the. grip portion beingshown in secton;

ig. 5 is a view similarpto Fig. 4 Showing' Vanother modification;

VVFiga 6 is alongitudinal,"sectional view of` the construction shown inFig. 5 but. at'rightl angles to the latter figure;

Fig. -7 isa rear elevation' of razor shown in Figs. 5 and 6;; Y

Fig. 8 is a sectional view on the line 8-8,

parts ofthe Figg'and Fig; 9 is a sectional view on the line 9 9,

Fig.l 2.

GitV

f -Referring first to Figs. 1,2 and 3,-the

razor there shown ,comprisesv a blade holder consisting 'of'upperandlower jaws 2 and 8,

respectively, arranged to clamp a razor blade 4' between them: "hefupperjaw forms a cap and the lower jaw a guard for the razor throughV which`a hinge pin 6 extends, thusA blade, the latter -jfaw having-guardfingers `5 similar to those used on razors of prioreonpivotingf'thetwo.jaws together for relativeV y swinging 'movementinto blade clamping andreleasing positions. 1n thevform shown-'the lowerjaw 3 of the bladeholder is provided' Iwitlra relatively'iiat'upperl face @,iFig. '1, onlwhich the blade l may. be; positioned, this particular form of bladebeing comparatively narrow, and thev upper j aw has a corresponda ingfiat face 5 to cooperatev with the faced in gripping the blade;v Thebl'adehas two holesA 7+-7 therethrough and the .lowerj'a'w v `j Bfis'provided withA positioning .spins 8;-8k

to enter 'these -holes,fthe upper aw.- beingcut out, as shown at 9, Fig.2, to receive the pins. It may also be noted that the holder is slottedquite deeply to-receive the blade so that when the blade is in itsshaving position, as shown in Fig. 3, its rearward edge liesconsiderably behind the pivot pin 6 and well back toward the rearwardedge of the holder, this arrangement being provided partly for thepurpose of reducing the overall width of the holder.V

The razor also includes a handle for the holder, the handle consistingof a tubular grip portion 10 and a forked shank portion 12. This shankportion may conveniently be formed integral'with the cap or upper jaw 2of the blade holder, and in any eventshould be rigid with the lattermember. It also includes a part 13 which extends into the upper end ofthe grip 10 and is secured thereto by a pin 14, The shank also iscurved, as best shown in Figs. 2 and 3, to oiiset the blade holderrelatively to the grip portion 10- of the handle so that the cuttingedge of the blade will be positioned closely adjacent to the axis of thegripy 10. rfhis relationship materially improves the hang of the razorand facilitates the guiding of the razor by the hand since the linealong which the guiding movement is directed passes through or close tothe shaving edge which is, of course, the part thatv must be accuratelymoved and controlled.

For the purpose oi? operating the blade holder to; clamp. or release ablade, a plunger 15 is mounted to slide longitudinally in the gripportion 10 of the handle and is positively connected with they lower jaw3 by a link 16 and an arm 17, the-arm being integral with, or otherwiserigidly secured to, the jaw A coiled spring 18 located in the grip. 10encircles. a part of the plunger 15 and abuts at its lower end against adisk 2O which is rigidly secured to the lower end of they plunger. Theupper end of the spring abuts against the lower end oit the sha-nkmeinber 13.. 'lhis spring, theretore, tends to :torcev the plungerdownwardly and serves to maintain the jaw 3 in its closed or bladeclamping position.

vFor the purpose of pushing the plunger upwardly to swing the lower jawinto its open position, a short plunger or push button 21 is slidablymounted in the lower end of thegrip 1(2), the upper end of this buttonbeing drilled; to receive the lower extremity of the plunger loosely.yConsequently, by pushingupwardly on this button the lower jaw 3 may beswung into its open position, as shown in Figs. 1 and' 2. As soon as thebutton is released the spring 18 acts immediately tereturn the lowerVjaw or guard itsfclesed or bladel clamping positiony agaenr.v Y l Theoiaeration of the plunger is` facilitated by providing'the grip 10 ofthe handle with isfiaor's a disk-like enlargement 22 which can beengaged by the iingers while the thumb presses on the button 21, asshown in Fig. 1.

For the purpose oi locking the blade holder in its open position, abayonet slot 23 may be formed in the lower part of the grip and a pin 2isecured transversely in the push button 21 where its end will extendintothe slot 23, so that by turning the button to the right, Fig. 1, when ithas been pushed inwardly, it may be entered in a horizont-al port-ion ofthe slot where it will prevent the spring 18 from forcing the plungerdownwardly. The lower end of the button also maybe roughened, as shownin the drawings, to give the thu-nib a better grip on it in making theturning movement either to locll or release the button.

Preferably, although not necessarily, the upper portion of the plunger15 is Aflattened where it extends through the part 13 of the shank, andthislpart is slottedto 'orrn a guide for theiat part of the plunger, theiiattened portion ot the plunger also being slotted, as shown at 25toreceive the pin 14. The lower end of this plunger is guidedA by theengagementot the head or washer 20 with the walls f the bore in the grip10.

In using this razor a blade may be'very quiclrly removedvby holdingthe-rwor in a horizontal positien, as-shown in- Fig. 1,pushin-Lginwardlyv on the button 21 and thereby swinging the lower j awor guard 3 into a substantially horizontal open positionV where it liesagainst the arms of the sha-nir 12', and' then picking up the razorblade by its ends, as alsoindicated in sai-d figure.y A. new blade maythen be placed in the holder while holding the blade by its ends betweenthe thumb and tore This placing oi a new blade in position isfacilitated? by holding the razor horizontally with the jaw 3: in ahorizontal plane, as shownl in 1 As soon as the blade has been droppedon to the surface a with the pins 8 8V entered in the holes 7-".7, thebutton 21 may be released, whereupon the spring 18l immediatelyswingsthe lower jaw 3 into its closed. position, as shown in Fig. Therazor then is ready for shaving. Usually the razor is held by thelingers and thumb of the right hand while the blade is removed and a newone replaced' by the thumb and fore finger oit the leit hand. Thehold'eiA of the razor may be steadied during this operation, if desired,bythe third or little finger, or both, ofthe leit hand.

Attentiony is' particularly directedl to the' v fact that in thisconstructionthe lower jaw or guard 3 only is moved, the upper )aw or cap2 being rigid with theh-andle. This is important inv the razorconstruction here shown; in which; the blade Aclamped in its shavingposition by a spring, since the torce exerted on the blade by the'resistance of the beard during'shaving tends to move theblfadebackwardly into its holder Aand -toV crowd it.

i against the upper jaw or cap 2.` This Vupper jaw, however, and therear walls ofthe slot in which the blade is located' are all rigidwiththe'handle, so that the'bl'ade is rigidlysupported adjacent toV its-edgeand any substantial vibration of `the blade during shaving is'`prevented, notwithstanding the fact that the. blade is `clamped inshaving position-'solely by the action of the spring 18. tendency oftheblade to slip backwardly injthe holder is prevented by the pins 8 8,'the force soV exerted on the pins tending, due to the relationsliipoit' the pins to the hinge pin `6, to

close the jaw 3 all the more lirmly and thus to assist, rather thanoppose, the action of the spring 18. lnltliisarrangement, therefore,'thesecure clamping of the blade which is essential to a goodshave isobtained ina construction which permits a very quick changing of theblades and in which noV parts of the razor areremoved during thevchan-ging.`

operation so that any possibility of dropping parts or placing them inpoorly adjusted positions is prevented.

Fig. 4 shows a. construction substantially like that illustrated inFigs. 1, 2 and 3, eX- y the link 16 and in providing a differentV pushbutton construction. In this embodiment ofi Y the invention theplunger28, which corresponds to the plunger 15, is extended upwardly and isconnected directly to the arm 17 by a pivot pin 30, this pivot'pinextending through a. slot formed in the eXtreme'upperr end of theplunger. .y

The push button 31 is slotted, as shown at 32, so that it can slide upand down `past la pin` i 83 which is liXed transversely in thetwo wallsof the grip 10, and this button is notched,

as shown at 34, Fig. 5, tovreceive the pin when' the button is given aslight rotatingmovenient toward the right after being pushedupwa-rdly toits extreme limit. When so positioned the button and pin lock-the holders connecting` said grip portion with said uppery jaw, said shank beingcurved toA offset said open. This arrangement, however, avoids theslotting of the lower end ofthe grip 1() which is desirable topreventthe entrance of lather and water into the bore of the'grip where theymight cause .corrosion of the parts. rllhe relatively close lit of theflattened portion of the plunger where it slides through the part 13ofthe shank also is ofV advantage for this reason. Y y

While I have hereinshown and described preferred embodiments of .my`invention, it

will be understood that the invention may be y;

embodied otherorms withoutdeparting movement,*a handle for said' holdereXt/e'nd'- i ing at approximately right angles thereto and secured]-rigidly to said 'upper jaw," a vplunger slidable in said handlelongitudinally thereof, positiveV connections between said plunger andsaid lower lj aw whereby the lower jaw may beopened and closed by movingsaid plunger, and a spring in said handle for acting on said plunger ina direction to" hold said lower jaw close Y 2. A-safetyrazor Icomprising a blade holder including upper and lower jaws for clamping arazor blade between them,'s`a`id upper ja'w forming-a cap andsaid lowerjaw 'a guard for the'razor` blade, a. hinge connecting said jaws forrelative opening and closing movement, a hand-le for said 'holderextend-` ing jat approximately right 'angles' thereto and `securedrigidlyI to said` upper jaw, a plunger slidablein said handle'longitudinally said plunger,'a spring in said handle'forv c actingonsaidplunger in a direction to hold said lower jaw closed, and anVoperating element for.V Ysaid plunger comprising a push?Y buttonprojecting from the lower endof the grip portion `ofthejhandle, thehandle being ,provided .with-an enlargementabove its lower endor'ailordinga grip .forthelingers while i i the thumb pushes saidbuttonupwardly' 3. A safety razorcomprising a blade holder includingupper and lower jaws Jfor clamp-l ing a razor blade between them,` saidYupper 'i thereof, positive connections between said jawforming acappandsaid lower jaw 'a C guard-for the razor blade,- a hingeconnecting i said-jaws for relative opening ande-losing movement, ahandle for said holder extending at approximatelyright anglesvtheretoand secured rigidly to said upperjaw,xsaid j' handle including a gripportion and a shank holder relativelyto the axis of the grip poraxistoextend closely adj aoentV to the cuttingV v edge oa blade clamped inshaving position in said holder, a plunger slidably mounted in saidhandle, positive connections4 between said plunger and said loweryjawfior causing l the movement oftheplunger to swing v'theylowerrjawinto open and clo-sedpositions, v

.iso f y y tion o-tli'ehandle sutliciently'to cause said Y nr u:

fin

closed, and amember operatively connected. with said plunger andarranged to be engaged by the hand to move said plunger against theaction of said spring.

el. A safety razor comprising a blade holder including upper and loweraws for clamping a razor blade between them, said upper j aw forming acap and said lower jaw a guard for the razor blade, a hinge connectingsaid jaws for relative opening and closing movement, a handle for saidholder extending at approximately rightangles thereto and se# curedrigidly to said upper jaw,l said handle including a shank rigid withsaid uppervjaw and a tubular grip portion separate from but rigidlysecured to the lower end of said shanlna plunger slidable in saidhandle, positive connections between said handle and said lower jaw forcausing the movement of the plunger longitudinally of the handle toswing said lower jaw into its open and closed positions, said plungerbeing guided in the shank portion of said handle and also in the lowerpart of t-he grip portion or the handle, and acoiled spring in saidhandle encircling said plunger and operating thereon t0 push the plungerdownwardly and thereby serving l normally to hold said lower jaw closed.

5. A safety razor comprising a blade holder including upper and lowerjaws for clamping a razor blade between them7 said upper jaw forming acap and said lower jaw a guard for the razor blade, a hinge connectingsaid jaws for relative opening and closing movement7 a handle for saidholder extendingl at approximately rigat angles thereto and securedrigidly to said upper jaw, plunger slidable in said handlelongitudinally thereof, positive connections between said plunger andsaid lower jaw whereby the lower jaw may be opened and closed by movingsaid plunger, a spring in said handle Vacting on said plunger to push itdownwardly and thereby tending to hold said lower aw closed7 a pushbutton projecting from the lower end of said grip portion and operableto push said plunger upwardly to open said lower jaw, and a transversepin secured rigidly in said handle beside said buttom said button beingout away to enable it to move longitudinally of the handle relatively tothe pin and having a transverse notch therein to receive said pin toloclr said lower jaw in its open position.

6. In anale/ty razor, the combination of a blade holder inoluding aguard having a blade supporting face on the upper side thereof, a capcooperating with said guard to clamp the blade on said 'face in positionfor sha ing, said cap and guard cooperating to enclose the greater partof said blade leaving the edge portion thereof exposed, saidcap andguard having interengaging hinge lugs extending from the rearwardportions thereof, a pivot pin extending through said lugs and connect-BENNETT G. JANSSON.

CERTIFICATE 0F CORRECTION.

Patent No. 1,848,078. Granted March 1, 1932, to

BENNETT G. JANssoN.

It is hereby certified that error appears in the printed specificationof the above numbered patent requiring correction as follows: Page 4,line 1, claim 3, for the word "connected" read associated; and that thesaid Letters Patent should be read with this correction therein that thesame may conform to the record of the case in the Patent Office.

Signed `and sealed this 12th day of April, A. D. 1932.

. M. J. Moore, (Seal) Acting Commissioner of Patents.

